JP2006188908A - Sill structure of door frame in foldable door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sill structure of a foldable door device capable of securely draining water from a sill even in a barrier-free structure. <P>SOLUTION: In the foldable door device, a guide groove 6 guiding a foldable door is formed in a door frame on the outdoor side of the sill 1b and a storage groove 14 is formed in the guide groove 6 on the indoor side through an intermediate groove 17. A sealing member 15 is rotatably supported inside the storage groove 14. When the projected edge part 20 of the sealing member 15 is pushed down by a lock bar 24, the sealing member 15 is rotated until it is brought into contact with the lower indoor side surface of the foldable door to continue a floor surface with the foldable door. A hollow part 26 is formed under the guide groove 6 and the intermediate groove 17, a first drain route (a) allowing the intermediate groove 17 to communicate with the outdoor side is formed with the groove bottom of the intermediate groove 17 set higher than the groove bottom of the guide groove 6, and a second drain route (b) allowing the storage groove 14 to communicate with the outdoor side is formed with the groove bottom of the storage groove 14 set higher than the bottom part of the hollow part 26. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a folding door in which a plurality of doors arranged inside a door frame provided in a building frame are rotatably connected, and the door frame is folded to open the door to thereby substantially close the door frame. The present invention relates to a lower frame structure of a door frame in a folding door device capable of opening the whole.

  Generally, a folding door is configured by connecting two door bodies through a joint rod so as to be rotatable, and allowing one free end to move along a guide rail of a building opening. A handle is provided on the door body, and the folding door can be opened and closed by pushing and pulling the handle outdoors or indoors. When the door is closed, all the door bodies are arranged flush with each other, and when the door is opened, the door body is folded.

  By the way, recently, a barrier-free structure has been adopted that makes it easy for elderly people and infants to move to the outdoor deck or balcony through the opening of the building or to move indoors when entering the indoor from the deck or balcony. There is a strong tendency to be. For this reason, there are increasing examples in which the upper surface of the lower frame of the sash, the floor surface on the indoor side, the deck surface on the outdoor side, and the floor surface of the balcony are designed to be substantially flush with each other.

  However, such barrier-free structures are mostly examples of sliding door sashes, and there is no barrier-free structure in the opening / closing structure provided with a folding door at the opening of the building.

  The reason is that airtightness and watertightness between the folding door and the lower frame of the door frame are difficult. That is, the structure in which the upper surface of the lower frame of the door frame, the floor surface on the indoor side, the deck surface on the outdoor side and the floor surface of the balcony are substantially flush with each other, prevents wind and rain from the outdoor side from entering the room. It is difficult.

  The lower frame of the conventional folding door has a structure with a step so that the indoor side is high and the outdoor side is low.In this way, the door body is separated from the lower frame when the door is opened. There is no problem. In addition, when the door is closed, the indoor side surface of the door frame is brought into contact with the stepped surface of the lower frame, so that airtightness and watertightness indoors and outdoors can be easily ensured.

  As described above, in the barrier-free structure, the upper surface of the lower frame of the door frame is formed so as to be in a substantially horizontal state. Therefore, the door body cannot be folded unless there is a gap between the door body and the lower frame. . However, conversely, if there is a gap, there arises a problem that the airtightness and watertightness between the folding door and the lower frame cannot be maintained.

As an improvement measure, as shown in Japanese Patent Application No. 2004-306750 and Japanese Patent Application No. 2004-216660, the floor surface around the lower frame of the door frame is flat when the door is opened, but the lower frame and the floor surface are closed when the door is closed. A structure in which a sealing member that seals the protrusion protrudes is conceivable.
JP 2003-193756 A

  However, the lower frame of the door frame requires a receiving groove for receiving the sealing member when the door is opened and a receiving groove for receiving the operating rod for operating the sealing member when it moves downward. Therefore, several grooves are formed above the lower frame, and the indoor side of the lower frame is sealed by a sealing member to ensure watertightness and airtightness. It was enough.

  It is an object of the present invention to provide a lower frame structure in a folding door device that solves the above problems and can ensure drainage of the lower frame even in a barrier-free structure.

  In order to solve the above-mentioned problem, the invention according to claim 1 has a door frame and a folding door, the lower frame upper surface of the door frame is substantially flush with the floor surface, and the folding door is provided inside the door frame. A guide groove for guiding the folding door is formed on the outdoor side of the lower frame, a storage groove is formed on the indoor side of the guide groove, and the storage is inside the storage groove. While storing the sealing member that can protrude above the groove, an intermediate groove is formed between the guide groove and the storage groove, and the sealing member is rotated to the upper end of the partition wall between the storage groove and the intermediate groove. The seal member rotates and protrudes from the storage groove when the projecting edge of the seal member that is freely supported and protrudes into the intermediate groove is pushed down by the lock rod provided on the door frame, and the lower part of the folding door It is intended for a folding door device in which the floor surface and the folding door are kept in contact with the indoor side surface of the door. .

  In such a folding door device, a hollow portion is formed below the guide groove and the intermediate groove, the lower portion of the storage groove is formed adjacent to the indoor side of the hollow portion, and the intermediate groove The groove bottom is made higher than the groove bottom of the guide groove to form a first drainage path communicating from the intermediate groove to the outdoor side, and the groove bottom of the storage groove is made higher than the bottom of the hollow part A second drainage path communicating from the storage groove to the outdoor side is formed.

  The invention according to claim 2 is characterized in that the door frame and the folding door are each composed of a metal part and a synthetic resin part.

  According to the first aspect of the present invention, the indoor side of the lower frame of the door frame with respect to the storage groove is sealed by the sealing member, but the condensed water adhered to the folding door or the partition wall between the storage groove and the intermediate groove Flows down into the storage groove. In addition, rainwater that has entered from the gap between the folding door and the lower frame enters the guide groove and the intermediate groove.

  On the other hand, the first drainage path that communicates from the intermediate groove to the outdoor side through the guide groove is formed, and the second drainage path that communicates from the storage groove to the outdoor side is formed, so the rainwater is It drains from the said 1st drainage channel, and dew condensation water drains from the said 2nd drainage channel. Therefore, dew condensation water, rainwater, etc. do not collect in the storage groove and the receiving groove of the lower frame, and are always kept clean.

  According to the invention which concerns on Claim 2, since the said door frame and the folding door are each comprised from the metal part and the synthetic resin part, the indoor and outdoor heat insulation can be ensured further.

  1 is an interior view of a sash including a folding door device, FIG. 2 is a cross-sectional view taken along line XX in FIG. 1, and FIG. 3 is a cross-sectional view taken along line YY in FIG. A pair of left and right folding doors 2 and 3 are arranged inside.

  As shown in FIGS. 2 and 3, the door frame 1 and the folding doors 2 and 3 are composite sashes each including an outdoor-side metal portion p and an indoor-side synthetic resin portion q. As shown in FIG. 4, the door is configured to expand into a planar shape when the door is closed and to be folded to the outdoor side when the door is opened.

  The door frame 1 is formed by rectangularly framing an upper frame 1a, a lower frame 1b, and a vertical frame 1c, and is fixed to a door opening of a building housing (not shown). It is assumed that the indoor floor of the lower frame 1b is substantially flush with the indoor floor and the deck and balcony are substantially flush with the outdoor. The upper frame 1a and the lower frame 1b of the door frame 1 are formed with guide grooves 5 and 6 for folding doors along the outdoor longitudinal direction.

  Each of the folding doors 2 and 3 has two door bodies 9 rotatably connected via a joint rod 10 between a fixing rod 7 on the suspending side which is separated from each other and a door rod 8 which can be brought into contact with each other. It will be. A double glass 11 is mounted inside the door body 9. A roller bracket 12 is attached to the upper part of the fixed rod 7 and the door rod 8, and the roller rod 12 is slidably engaged with the guide groove 5 of the upper frame 1 a, so that the fixed rod 7 and the door rod 8 are engaged. In addition, two door bodies 9 and a joint rod 10 are suspended. A rotating roller 13 that rotates along the guide groove 6 of the lower frame 1b is provided at the lower part.

  Next, a storage groove 14 is formed along the indoor side of the guide groove 6 of the lower frame 1b, and two sealing members 15 corresponding to the folding doors 2 and 3 rotate inside the storage groove 14. It is stored freely. The length of the two sealing members 15 is substantially the same as the length of the storage groove 14. The indoor side of the storage groove 14 is also covered with the synthetic resin portion q. A part of the synthetic resin portion q is extended, and an angle piece 16 for fixing to the floor surface on the indoor side of the lower frame 1b is formed.

  An intermediate groove 17 is formed between the guide groove 6 and the storage groove 14 of the lower frame 1b. As shown in FIG. 5, a circular bulge is formed at the upper end of the partition wall 18 of both grooves 14, 17. Has been.

  The sealing member 15 is rotatably supported on the upper end of the partition wall 18. The sealing member 15 is formed of a metal extrusion mold material. An engagement recess 19 is formed in the lower center portion of the sector base portion 15a, and a protruding edge 20 is formed on the opposite side. A heat-insulating resin cover 21 is attached to the outer peripheral side of the base portion 15a, an airtight material 22 is attached to the upper portion, and a cushion material 23 is attached to the lower portion.

  The engaging recess 19 of the sealing member 15 is engaged with the upper end of the partition wall 18 of the storage groove 14 and is rotatable about the engaging portion. The sealing member 15 is normally housed in the housing groove 14, and in this state, the tip of the projecting edge portion 20 projects in a substantially horizontal state in the intermediate groove 17. In addition, it is preferable to attach a stainless steel cover (not shown) for preventing color fading to the surface of the projecting edge portion 20.

  As shown in FIGS. 2 and 5, a lock rod 24 that can be operated from the outside is accommodated inside the joint rod 10 so as to be movable up and down. The lower portion of the lock rod 24 is branched into a fork between an outdoor lock portion 24a and an indoor operation rod 24b. The lock portion 24a is disposed so as to be insertable into the guide groove 6 of the lower frame 1b, and the operation rod 24b is disposed so as to be insertable into the intermediate groove 17.

  In the above configuration, when the folding doors 2 and 3 are folded and opened, as shown in FIG. 5, the sealing member 15 is housed in the storage groove 14, and a part of the side surface portion on the upper side thereof. The airtight material 22 faces the indoor side. When the folding door 9 is unfolded and closed, as shown in the figure, the lock rod 24 of each folding door is lowered and the outdoor side lock portion 24a is inserted into the guide groove 6 of the lower frame 1b. Thereby, the folding doors 2 and 3 cannot be folded. At the same time, the actuating rod 24b is also lowered, enters the intermediate groove 17 of the lower frame 1b, engages with the protruding edge 20 of the sealing member 15, and is pushed down, so that the sealing member 15 rotates to be above the storage groove 14. The airtight material 22 abuts against the indoor side surface of the lower arm 9b of the folding doors 2 and 3, whereby the floor surface and the folding door are continuous, and the sealing member 15 is formed between the folding door and the indoor floor surface. Since the gap between them is closed, even with a barrier-free structure, airtightness and watertightness with the outside can be ensured.

  Next, as described above, the intermediate groove 17 is formed between the guide groove 6 and the storage groove 14, but as shown in FIGS. 5 and 6, below the guide groove 6 and the intermediate groove 17. A hollow portion 26 is formed in the bottom. The hollow portion 26 is formed so as to be adjacent to the storage groove 14 via a partition wall 18 between the storage groove 14 and the intermediate groove 17. The groove bottom of the intermediate groove 17 is formed higher than the groove bottom of the guide groove 6, and the groove bottom of the storage groove 14 is formed higher than the bottom of the hollow portion 26. Further, through holes 27 and 28 are formed in the lower part of the side wall on the outdoor side of the intermediate groove 17 and the guide groove 6, and the lower part of the receiving groove is lowered from the indoor side to the outdoor side, and the guide groove 6 extends from the intermediate groove 17. The 1st drainage path a connected to the outdoor side via is formed. Similarly, through holes 29 and 30 are also formed in the partition wall 18 between the storage groove 14 and the hollow portion 26 and the lower portion of the side wall on the outdoor side of the hollow portion 26, and from the indoor side through the hollow portion 26 from the storage groove 14. A second drainage path b that is lowered toward the outdoor side and communicates with the outdoor side is formed. 32 is a drain valve.

  In addition, an inclined edge 31 is formed so as to project obliquely downward indoors from the intermediate portion of the partition wall 18 between the guide groove 6 and the intermediate groove 17. Then, as shown in FIG. 7, the width w1 of the upper end opening of the intermediate groove 17 is set to 9 to 10 mm, and the width w2 of the intermediate groove 17 at the lower end of the inclined edge 31 is set to 5 mm or less. .

  According to the above-described lower frame structure, the indoor side of the lower frame 1b of the door frame 1 relative to the storage groove 14 is sealed by the sealing member 15, but the folding doors 2 and 3 and the storage groove 14 and the intermediate groove 17 are sealed. The condensed water adhering to the partition wall 18 flows down into the storage groove 14. Rainwater that has entered from the gap between the folding doors 2 and 3 and the lower frame 1b enters the guide groove 6 and the intermediate groove 17. However, since the rainwater is drained from the first drainage path a and the dew condensation water is drained from the second drainage path b, dew condensation water, rainwater, etc. are contained in the storage groove 14 and the intermediate groove 17 of the lower frame 1b. It does not accumulate and is kept clean.

  Further, since the width w1 of the upper end opening of the intermediate groove 17 is set to 9 to 10 mm, the lock rod 24 can be effectively lowered and the sealing member 15 can be effectively rotated, and a child can mistakenly insert into the intermediate groove 17. Even if you put your finger, you can easily pull it out. Further, since the width w2 of the intermediate groove 17 at the lower end portion of the inclined edge 31 is set to 5 mm or less, even if a child puts a finger into the intermediate groove 17, it cannot be inserted below the inclined edge 31. Therefore, an accident can be prevented beforehand.

  In addition, since the inclined edge 31 protrudes from the partition wall 18 to the indoor side, and the groove width of the intermediate groove 17 is reduced by the inclined edge 31, rainwater blown in from the outside through the first drainage path a. And the like can be effectively prevented from falling on the back side of the inclined edge 31 and blowing up above the intermediate groove 17.

  In addition, as a sash with improved heat insulation, as in the example of the door frame and folding door described above, the part facing the outdoor side is made of an extruded metal material such as aluminum, and the part facing the indoor side is made of synthetic resin. In addition to those configured, there is also known a configuration in which a door frame and a folding door are each connected to an indoor member and an outdoor member made of a metal extrusion mold member via a heat insulating member made of synthetic resin. The lower frame structure of the door frame can also be applied to the latter folding door device. Of course, the lower frame structure of the door frame is applicable not only to a heat insulating sash, but also to a metal sash made of a metal such as aluminum.

It is an inside view of the sash which concerns on a folding door apparatus. It is sectional drawing on the XX line of FIG. It is sectional drawing on the YY line of FIG. It is a cross-sectional view of a state in which the folding door is opened. It is an expanded sectional view of the lower frame of a door frame. It is an expanded sectional view at the time of the member for sealing turning. Partial enlarged view of FIG.

Explanation of symbols

a First drainage path b Second drainage path 1b Lower frame 2, 3 Folding door 6 Guide groove 14 Storage groove 15 Sealing member 17 Intermediate groove 26 Hollow part

Claims (2)

It has a door frame and a folding door, and the upper surface of the lower frame of the door frame is substantially flush with the floor surface, and the folding door is folded inside the door frame so that it can be unfolded and unfolded. A guide groove for guiding the folding door is formed, a storage groove is formed on the indoor side of the guide groove, and a seal member that can protrude above the storage groove is stored inside the storage groove, An intermediate groove is formed between the guide groove and the storage groove, the seal member is rotatably supported on the upper end of the partition wall between the storage groove and the intermediate groove, and the protrusion of the seal member protruding into the intermediate groove. When the edge is pushed down by a lock rod provided on the door frame, the sealing member rotates and protrudes from the storage groove, and comes into contact with the indoor side surface of the lower part of the folding door so that the floor surface and the folding door are connected. In the folding door device designed to be continuous,
A hollow portion is formed below the guide groove and the intermediate groove, and the lower portion of the storage groove is formed adjacent to the indoor side of the hollow portion, and the groove bottom of the intermediate groove is formed toward the groove bottom of the guide groove. A first drainage channel that is higher than the intermediate groove and communicates with the outdoor side, and the bottom of the storage groove is higher than the bottom of the hollow portion and communicates from the storage groove to the outdoor side. The lower frame structure of the door frame in the folding door apparatus characterized by having formed two drainage paths. The said door frame and the folding door are respectively comprised from the metal part and the synthetic resin part, The lower frame structure of the door frame in the folding door apparatus of Claim 1 characterized by the above-mentioned.

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